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error HP

Error Code Black cartridge very low

Indicates the black toner is critically low, and replacement should be imminent before quality issues occur.

? What Causes This

Natural depletion of ink/toner in standard usage patterns nearing end-of-life estimate for that product model.

How to Fix It

Replace as soon as possible with genuine HP cartridge to avoid print quality loss. Check warranty details if necessary.

Source: page 168 of the official manual

From the manual

Manual page 168 — HP error Black cartridge very low

Affected HP Products